# Topic is on New Physics Vs Old Physics Anomalies New Physics or Old Physics? A

Topic is on New Physics Vs Old PhysicsAnomalies New Physics or Old Physics?At some point address the observations of anomalous acceleration, specifically addressing the ideas there may be either unknown physics to still be understood or an unknown property of O which led to its unexpected acceleration. How would we know whether the orbit of O violated, say, Newton’s law of gravity?Investigate whether light from the Sun would be able to accelerate an object like O in an anomalous manner. Look up the formula for radiation pressure. Estimate the average intensity of light at the point of O’s closest approach to the Sun. Use the estimated area of O and the relationship between force, pressure, and area to calculate an estimate the force on O. Then, using the estimated mass of O use Newton’s second law to calculate an estimate of the acceleration of O caused by light. See for example:Could Solar Radiation Pressure Explain ‘Oumuamua’s Peculiar Acceleration?https://arxiv.org/abs/1810.11490Discuss whether the anomalous acceleration is more likely due to measurement error, out-gassing, or light pressure. See, for starters the section in the Wikipedia article on O on the Hydrogen Ice idea, and the paperOut gassing As Trigger of 1I/`Oumuamua’s Nongravitational Acceleration: Could This Hypothesis Work at All?https://arxiv.org/abs/1905.00935You can also address the question of when a detected anomalous acceleration would indicate new physics. See for example how anomalous orbit data drove the detection of Neptune in .https://en.wikipedia.org/wiki/Neptune#Discoveryyou may use any sources that are reliable.